Читать книгу Fundamentals of Heat Engines - Jamil Ghojel - Страница 48

A process is referred to as polytropic when it deviates from the adiabatic as a result of heat crossing the boundary in addition to work. The relationship is similar to the adiabatic with the adiabatic exponent γ replaced by a polytropic exponent n (n < γ):

(1.53)

The volume V can also be written in terms of specific volumes v = V/m, which yields the additional equation p₁/p₂ = (v₂/v₁)ⁿ.